attach vs agglutinate

attach is not an adjective while agglutinate is an adjective.

Word	Noun	Adjective	Verb	Adverb
attach	No	No	Yes	No
agglutinate	No	Yes	Yes	No

As verbs, agglutinate is a hyponym of attach; that is, agglutinate is a word with a more specific, narrower meaning than attach:

Other hyponyms of attach include implant, fasten, adhere, bind, bond, hold fast, stick, stick to, spat.

attach (adjective)	agglutinate (adjective)
	united as if by glue

attach (verb)	agglutinate (verb)
become attached	clump together; as of bacteria, red blood cells, etc.
cause to be attached	string together (morphemes in an agglutinating language)
be attached; be in contact with
take temporary possession of as a security, by legal authority
create social or emotional ties